Firefighting sandbox in a firefighting monitoring system

Abstract

This invention discloses a fire sandbox in a fire monitoring system, comprising a vehicle body and a cylindrical body fixedly connected to the top of the vehicle body; a switching column fixedly connected to the upper end of the vehicle body, the outer wall of the switching column being formed with an upper combined sliding groove; a switching frame rotatably connected to the outer periphery of the switching column, a sliding frame slidably connected to the switching frame, and a fire bucket detachably connected to the sliding frame; the upper combined sliding groove includes a switching groove arranged in a vertical direction and an upper feeding groove arranged at an inclination; a compression spring is provided between the sliding frame and the switching frame; a sand discharge pipe is fixedly connected to the inner bottom of the cylindrical body; an inner tube is fixedly connected to the inside of the cylindrical body; a feed rod is rotatably connected to the inner tube; an opening and closing disc is rotatably connected to the sand discharge pipe; and a motor is fixedly connected to the top of the cylindrical body; this invention can move flexibly while automatically and quickly filling the fire bucket with sand and can dry the fire sand when not in use.

Description

Technical Field

[0001] This invention belongs to the field of fire protection technology, specifically relating to a fire sandbox in a fire monitoring system. Background Technology

[0002] Chinese patent document CN112587835B discloses a fire sandbox. However, due to the fixed shape of the sandbox, it can only extinguish fires around the sandbox, resulting in low flexibility.

[0003] Chinese patent document CN214485387U discloses a fire sand box that is easy to store sand. However, during use, the amount of water vapor that can be carried out by the gas is limited, and the amount of caking that can be solved by turning the box is also limited. In addition, the box body is fixed as a whole, and its flexibility is low. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a fire truck that can quickly fill fire buckets with sand in a fire monitoring system, which can be flexibly moved and can automatically and quickly fill fire buckets with sand and dry the fire sand when it is not in use, in order to address the shortcomings of the existing technology.

[0005] To achieve the purpose of this invention, the following technical solution is adopted: a fire sandbox in a fire monitoring system, comprising a vehicle body and a cylinder containing fire sand fixedly connected to the top of the vehicle body.

[0006] A switching column is fixedly connected to the upper part of the vehicle body directly below the cylinder. The outer wall of the switching column is formed with an upper combined sliding groove connected end to end. A switching frame is rotatably connected to the outer periphery of the switching column. Multiple sliding frames that are slidably connected to the upper combined sliding groove are slidably connected to the switching frame along the vertical direction. Each sliding frame is detachably connected to a fire bucket. The sliding frames are arranged at equal intervals along the circumference.

[0007] The upper combined slide rail includes a switching groove arranged in the vertical direction and an inclined upper delivery groove connected to the lower end of the switching groove; a compression spring for pushing the sliding frame upward is provided between the sliding frame and the switching frame.

[0008] The bottom of the cylinder is fixedly connected to a sand outlet pipe that can deliver fire sand to the fire bucket; an inner pipe is fixedly connected inside the cylinder directly above the sand outlet pipe; a feed rod for transporting fire sand is rotatably connected inside the inner pipe, and the lower end of the feed rod is rotatably connected inside the sand outlet pipe; an opening and closing disc for closing the sand outlet pipe is rotatably connected inside the sand outlet pipe below the feed rod; the rotation of the feed rod can drive the rotation of the opening and closing disc; a motor for driving the rotation of the feed rod is fixedly connected above the cylinder.

[0009] When the feed rod rotates in the forward direction, the opening and closing plate does not close the sand outlet pipe. The fire sand at the bottom of the cylinder falls into the fire bucket through the sand outlet pipe. The full fire bucket moves out along the upper delivery slot and drives the switching frame to rotate. The adjacent empty fire bucket moves to the upper end of the switching slot. The empty fire bucket is directly opposite the sand outlet pipe and begins to be filled with fire sand.

[0010] When the feed rod rotates in the opposite direction, the opening and closing plate closes the sand outlet pipe, and the wet fire sand at the bottom of the cylinder is transported to the top layer and dried.

[0011] Compared with the prior art, the beneficial effects of the present invention are as follows: The present invention is a fire sandbox in a fire monitoring system, which can fill multiple fire buckets with sand in sequence without manual filling, thus saving time for rescue. When the fire sand is not in use, the bottom layer of damp fire sand can be sent to the upper layer to dry, thus avoiding the conduction of electricity by the damp fire sand during use, which would affect the escape of personnel. At the same time, the fire sand is spread evenly, which can reduce the drying time.

[0012] Furthermore, in addition to being a container for sand and receiving fire sand from the sand outlet pipe, the fire bucket in this invention can also rotate the switching frame when full, enabling the replacement of the sand-filled fire bucket. This is achieved solely through a mechanical structure, without the need for a motor-driven switching mechanism. Specifically, the switching column of this invention has an upper combined sliding groove. An empty fire bucket is stabilized at the upper end of the switching groove under the action of a compression spring, facing the sand outlet pipe and receiving fire sand. A fire bucket filled with fire sand moves out along the inclined delivery groove, and the component of gravity drives the switching frame to rotate.

[0013] On the other hand, the drive rod in this invention can rotate in two directions. When rotating in the forward direction, it drives the feed rod to transport fire sand into the sand outlet pipe. When rotating in the reverse direction, it drives the feed rod to transport fire sand into the spreading assembly, so that the fire sand is evenly spread on the top layer and can be dried to remove moisture. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the present invention when it moves on the ground.

[0015] Figure 2 This is a cross-sectional view of the fire bucket of the present invention when it is not filled with fire sand.

[0016] Figure 3 This is a cross-sectional structural diagram of the fire bucket of the present invention when it is filled with fire sand.

[0017] Figure 4 This is a cross-sectional structural diagram of the cylinder and spreading components during the spreading of fire-fighting sand according to the present invention.

[0018] Figure 5 This is a schematic diagram of the structure of the spreading component for spreading fire-fighting sand according to the present invention.

[0019] Figure 6 This is a cross-sectional structural schematic diagram of the present invention when transporting fire sand into a fixed pipe.

[0020] Figure 7 This is a schematic diagram of the structure of the drive rod, opening and closing disc, and opening and closing transmission gear of the present invention.

[0021] Figure 8 This is a cross-sectional structural schematic diagram of the feed rod and drive rod of the present invention.

[0022] Figure 9 This is a schematic diagram of the structure of the present invention when replacing the fire bucket.

[0023] Figure 10 This is a cross-sectional exploded view of the cylinder, feed rod, rotating disk, and partition of the present invention.

[0024] Figure 11 This is the system architecture diagram of the present invention.

[0025] 1. Body; 11. Fixing frame; 21. Switching column; 211. Anti-rotation ratchet; 22. Switching frame; 221. Anti-rotation pawl; 222. Anti-rotation torsion spring; 23. Sliding frame; 231. Roller; 24. Compression spring; 25. Fire bucket; 271. Upper smooth groove; 272. Upper feed groove; 273. Switching groove; 274. Upper discharge groove; 281. Lower smooth groove; 282. Lower feed groove; 283. Lower discharge groove; 3. Cylinder; 30. Divider plate; 31. Conical surface; 311. Sand outlet; 32. Sand outlet pipe; 33. Inner pipe; 34. Partition plate; 341. Material inlet; 4. Opening and closing plate; 41. Connecting port; 42. Opening and closing rack; 43. Opening and closing torsion spring; 44. Opening 51. Drive rod; 511. Drive cam; 512. Drive gear; 52. Synchronous pawl; 521. Synchronous torsion spring; 53. Feed rod; 531. Driven cam; 532. Synchronous ring; 533. Synchronous block; 54. Rotating disk; 541. Sand discharge port; 542. Crushing column; 543. Synchronous groove; 6. Spreading assembly; 61. Rotating seat; 611. Synchronous ratchet; 612. Fixed tube; 613. Fixed opening; 62. Rotating sleeve; 621. Movable opening; 622. Driven internal gear ring; 63. Transport rod; 631. Transport driven gear; 64. Transport transmission gear; 65. Fixed end face gear ring; 66. Sleeve transmission gear; 7. Motor. Detailed Implementation

[0026] according to Figures 1 to 11As shown in the figure, the fire sandbox in the fire monitoring system described in this embodiment includes a vehicle body 1 and a cylinder 3 containing fire sand fixedly connected to the top of the vehicle body 1.

[0027] A switching column 21 is fixedly connected to the upper end of the vehicle body 1 directly below the cylinder 3. The outer wall of the switching column 21 is formed with an upper combined sliding groove connected end to end. A switching frame 22 is rotatably connected to the outer periphery of the switching column 21. Multiple sliding frames 23 that are slidably connected to the upper combined sliding groove are slidably connected to the switching frame 22 along the vertical direction. A fire bucket 25 is detachably connected to each of the sliding frames 23. The sliding frames 23 are arranged at equal intervals along the circumference.

[0028] The upper combined slide groove includes a switching groove 273 arranged in the vertical direction and an inclined upper delivery groove 274 connected to the lower end of the switching groove 273; a compression spring 24 for pushing the sliding frame 23 upward is provided between the sliding frame 23 and the switching frame 22.

[0029] The bottom of the inner cylinder 3 is fixedly connected to a sand outlet pipe 32 that can deliver fire sand to the fire bucket 25; an inner pipe 33 is fixedly connected inside the cylinder 3 directly above the sand outlet pipe 32; a feed rod 53 for transporting fire sand is rotatably connected inside the inner pipe 33, and the lower end of the feed rod 53 is rotatably connected inside the sand outlet pipe 32; an opening and closing disc 4 that can close the sand outlet pipe 32 is rotatably connected inside the sand outlet pipe 32 below the feed rod 53; the rotation of the feed rod 53 can drive the rotation of the opening and closing disc 4; a motor 7 for driving the rotation of the feed rod 53 is fixedly connected above the cylinder 3.

[0030] Traditional fire-fighting sand filling relies entirely on manual labor, which is inefficient. Some automated filling equipment also requires circuit control and motor drive when changing fire buckets. The amount of fire sand in the fire bucket is entirely controlled by the control circuit. Therefore, there is a need for a device that can control the amount of fire sand in the fire bucket and change the fire bucket filled with sand through mechanical structure only.

[0031] When the feed rod 53 rotates in the forward direction, the opening and closing plate 4 does not close the sand outlet pipe 32. The fire sand at the bottom of the cylinder 3 falls into the fire bucket 25 through the sand outlet pipe 32. The full fire bucket 25 moves to a position where it does not abut against the inner wall of the switching groove 273 and moves out along the upper delivery groove 274. The switching frame 22 rotates synchronously, and the adjacent empty fire bucket 25 moves to the upper end of the switching groove 273. The empty fire bucket 25 is directly opposite the sand outlet pipe 32 and begins to fill with fire sand.

[0032] In substation scenarios, when fire-fighting sand is used to prevent fires caused by transformer oil, damp fire-fighting sand can conduct electricity, making it prone to becoming electrified, which can hinder personnel escape and cause injury. Therefore, it is necessary to monitor the humidity of the fire-fighting sand and dry it in a timely manner to ensure its good condition during use.

[0033] When the feed rod 53 rotates in the opposite direction, the opening and closing plate 4 closes the sand outlet pipe 32, and the wet fire sand at the bottom of the cylinder 3 is transported to the top layer and dried.

[0034] The upper end of the inner tube 33 is rotatably connected to a spreading component 6 capable of spreading fire sand on the uppermost layer; the spreading component 6 includes a rotating seat 61 rotatably connected to the upper end of the inner tube 33 and whose rotating shaft coincides with the rotating shaft of the feed rod 53; the outer wall of the rotating seat 61 is formed with a fixed tube 612 arranged radially and communicating with the inner tube 33; the inner wall of the fixed tube 612 is formed with a fixed opening 613 arranged along the axial direction and facing downward.

[0035] The spreading assembly 6 further includes a rotating sleeve 62 rotatably connected to the outer periphery of the fixed pipe 612 and capable of closing the fixed opening 613, a transport rod 63 rotatably connected to the inside of the fixed pipe 612 for transporting fire sand and pulsatingly connected to the rotating sleeve 62, and a fixed end face gear ring 65 fixedly connected to the upper part of the cylinder 3 and pulsatingly connected to the transport rod 63; the inner wall of the rotating sleeve 62 is formed with a movable opening 621 arranged along the axial direction that can communicate with the fixed opening 613.

[0036] A driven internal gear ring 622 is formed on the inner wall of the rotating sleeve 62 near the inner wall of the cylinder 3, arranged circumferentially. A sleeve transmission gear 66, which is rotatably connected to the driven internal gear ring 622, is rotatably connected to one end of the fixed tube 612 near the inner wall of the cylinder 3. A transport driven gear 631, which is rotatably connected to the sleeve transmission gear 66, is fixedly connected to one end of the transport rod 63 near the inner wall of the cylinder 3. A transport transmission gear 64, which is rotatably connected to the transport driven gear 631, is rotatably connected to one end of the fixed tube 612 near the inner wall of the cylinder 3. The transport transmission gear 64 is rotatably connected to the fixed end face gear ring 65.

[0037] When the movable opening 621 is not connected to the fixed opening 613, the transport rod 63 rotates around itself under the action of the fixed end face toothed ring 65, and the fire sand in the inner tube 33 is transported to the fixed tube 612 and fills the fixed tube 612.

[0038] When the movable opening 621 is connected to the fixed opening 613, the fire sand in the fixed pipe 612 falls through the fixed opening 613. The rotation of the rotating seat 61 causes the fire sand to be evenly spread on the top layer of fire sand in the cylinder 3, and the top layer of fire sand can be dried.

[0039] The inner wall of the opening and closing disc 4 is formed with an opening and closing rack 42 arranged circumferentially. The lower part of the cylinder 3 is rotatably connected to an opening and closing transmission gear 44 that can be driven to connect with the opening and closing rack 42. An opening and closing torsion spring 43 is provided between the opening and closing disc 4 and the cylinder 3 to drive the opening and closing disc 4 to rotate in the opposite direction.

[0040] A drive rod 51, which is connected to the opening and closing transmission gear 44, is fixedly connected to the output shaft of the motor 7; the drive rod 51 is rotatably connected to the inside of the feed rod 53; a drive gear 512, which is connected to the opening and closing transmission gear 44, is fixedly connected to the center of the lower end of the drive rod 51; an eccentrically arranged driven protrusion 531 is fixedly connected to the inner wall of the feed rod 53 along the axial direction; a drive protrusion 511, which can abut against the driven protrusion 531, is fixedly connected to the outer wall of the drive rod 51 along the axial direction; a sand outlet 311, which communicates with the sand outlet pipe 32 and is used to deliver fire sand, is formed at the bottom of the cylinder 3; and a connecting port 41, which is formed on the opening and closing plate 4 and is connected to the sand outlet 311, is formed on the opening and closing plate 4.

[0041] The upper end of the vehicle body 1 is fixedly connected to a fixing bracket 11 for mounting the cylinder 3; the inner bottom of the cylinder 3 is formed with an inclined conical surface 31 on the outer periphery of the sand outlet 311.

[0042] When the drive rod 51 rotates in the forward direction, the opening and closing disc 4 rotates to the first position, the opening and closing torsion spring 43 stores power, the opening and closing rack 42 contacts the opening and closing transmission gear 44 without transmission, the connecting port 41 connects with the sand outlet 311, and the drive protrusion 511 abuts against the driven protrusion 531, causing the feed rod 53 to continue rotating in the forward direction.

[0043] When the drive rod 51 stops rotating, the opening and closing disc 4 rotates to the second position under the elastic force of the opening and closing torsion spring 43. The connecting port 41 is not connected to the sand outlet 311. The opening and closing disc 4 drives the drive rod 51 to rotate in the opposite direction. The drive protrusion 511 separates from the driven protrusion 531. The feed rod 53 does not rotate.

[0044] After use, it is necessary to ensure that the opening and closing plate 4 can be closed quickly. However, at this time, the bottom of the cylinder 3 is filled with fire sand, which will create resistance to the rotation of the feed rod 53. Therefore, the drive rod 51 rotates relative to the feed rod 53, so that the opening and closing plate 4 can rotate to the closed position without the feed rod 53 needing to rotate.

[0045] The inner wall of the rotating seat 61 is formed with a synchronous ratchet 611, and the outer wall of the drive rod 51 is rotatably connected with a synchronous pawl 52 that can drive the synchronous ratchet 611 to rotate; a synchronous torsion spring 521 is provided between the synchronous pawl 52 and the drive rod 51 to drive the synchronous pawl 52 to rotate in a direction closer to the synchronous ratchet 611.

[0046] The sliding frame 23 is rotatably connected to a roller 231 that is slidably connected to the upper combined slide groove; the upper combined slide groove also includes a horizontally arranged upper smooth groove 271; one end of the upper smooth groove 271 is connected to the lower end of the upper delivery groove 274.

[0047] The upper combined slide groove also includes an inclined upper feed groove 272, the upper end of which is connected to the upper end of the switching groove 273, and the lower end of which is connected to the other end of the upper smoothing groove 271.

[0048] The switching frame 22 has a rotating anti-rotation pawl 221, and the switching post 21 has an anti-rotation ratchet 211 formed on it to prevent the anti-rotation pawl 221 from moving in the opposite direction; an anti-rotation torsion spring 222 is provided between the anti-rotation pawl 221 and the switching frame 22 to drive the anti-rotation pawl 221 to rotate toward the anti-rotation ratchet 211.

[0049] During the rotation of the switching frame 22, the fire bucket 25 filled with fire sand moves from the lower end of the switching groove 273 to the upper smooth groove 271, and the empty fire bucket 25 moves from the upper smooth groove 271 to the upper end of the switching groove 273.

[0050] The outer wall of the switching column 21 is formed with a lower combined slide groove connected end to end below the upper combined slide groove; the lower combined slide groove includes a lower feeding groove 282 that is inclined and directly opposite the upper feeding groove 272 in the vertical direction, a lower feeding groove 283 that is inclined and directly opposite the upper feeding groove 274 in the vertical direction, and a lower smoothing groove 281 that is horizontally opposite the upper smoothing groove 271 in the vertical direction; the upper end of the lower feeding groove 282 is connected to the upper end of the lower feeding groove 283; one end of the lower smoothing groove 281 is connected to the lower end of the lower feeding groove 282, and the other end of the lower smoothing groove 281 is connected to the lower end of the lower feeding groove 283.

[0051] When the roller 231 of the upper sliding frame 23 is located in the switching groove 273, the roller 231 of the lower sliding frame 23 is located in the lower delivery groove 283.

[0052] The lower end of the inner tube 33 is rotatably connected to a rotating disk 54 that is fixed relative to the feed rod 53; the upper end of the rotating disk 54 is formed with multiple crushing columns 542 for crushing agglomerated fire sand; the inside of the cylinder 3 is fixedly connected above the rotating disk 54 with multiple concentrically arranged annular partition plates 30; each partition plate 30 divides the inside of the cylinder 3 into multiple non-communicating cavities; the upper end of the rotating disk 54 and each cavity are respectively formed with vertically connected sand discharge ports 541 for fire sand to pass through.

[0053] According to the standards for the use of fire-fighting sand, fire-fighting sand should not have obvious clumps when stored. However, fire-fighting sand is prone to clumps when stored. In order to ensure its integrity when used, the fire-fighting sand needs to be turned over frequently and the clumps need to be broken up.

[0054] When the feed rod 53 rotates, the rotating disk 54 rotates synchronously. During the rotation of the rotating disk 54, the layer of fire sand at the upper end of the rotating disk 54 passes through the corresponding sand discharge port 541 and each of the crushing columns 542 to crush the clumps of fire sand, so as to avoid the clumps of fire sand affecting its use.

[0055] The cylinder 3 is fixedly connected to a partition 34 that is rotatably connected to the lower end of the rotating disk 54; the partition 34 is formed with a material inlet 341 that can communicate with the sand discharge port 541.

[0056] During the rotation of the rotating disk 54, the feed port 341 is intermittently connected to each of the sand discharge ports 541 to control the speed at which the fire sand falls inside the cylinder 3, and to prevent the feed rod 53 from becoming difficult to rotate due to excessive fire sand.

[0057] The inner wall of the rotating disk 54 is formed with a plurality of circumferentially arranged synchronous grooves 543; the outer periphery of the feed rod 53 is fixedly connected with a synchronous ring 532, and the outer wall of the synchronous ring 532 is formed with a plurality of synchronous blocks 533 that engage with the corresponding synchronous grooves 543.

[0058] A controller is fixedly connected inside the vehicle body 1, and a bottom humidity sensor for detecting the moisture content of the fire sand is fixedly connected to the bottom of the cylinder 3; a top humidity sensor for detecting the degree of drying of the fire sand is fixedly connected to the upper part of the cylinder 3.

[0059] When the bottom humidity sensor detects that the fire sand has a high moisture content, the controller controls the motor 7 to operate so that the wet fire sand is sent to the top layer to dry.

[0060] Once the top humidity sensor detects that the top layer of fire sand has dried, the controller controls the motor 7 to operate again, transporting a new batch of damp fire sand for drying.

[0061] A receiver for receiving commands is fixedly connected inside the vehicle body 1, and a stop button is provided on the vehicle body 1; the receiver, the motor 7, the top humidity sensor, the bottom humidity sensor, the stop button, and the controller are electrically connected.

[0062] In the initial state, the connecting port 41 on the opening and closing plate 4 is not connected to the sand outlet 311, and a roller 231 is located at the upper end of the switching groove 273 under the elastic force of the compression spring 24. The sand discharge port 541 is not connected to the material passage port 341.

[0063] When a fire occurs in a substation, transformers often leak oil. If the fire is not extinguished in time, the leaked oil will cause the fire to spread further and aggravate the disaster. The traditional method of filling fire sand for firefighting is entirely manual, which is inefficient. Another type of fire sand box that can be used quickly has a fixed base, which is not flexible and can only extinguish nearby fires. Therefore, there is a need for a mobile device that can quickly fill the fire sand box.

[0064] First, the automatic fire alarm system installed in the substation detects the disaster and generates a signal. The signal is transmitted upward to the intermediate information transmission system, and then upward to the terminal information processing system. After processing the signal, the terminal information processing system issues a command. The command is transmitted to the receiver on the vehicle body 1 through the intermediate information transmission system. The receiver then transmits the command to the controller. The controller then issues a command to control the motor 7 to operate in the forward direction.

[0065] The forward operation of motor 7 drives drive rod 51 to rotate forward. The rotation of drive rod 51 drives drive gear 512 to rotate. The rotation of drive gear 512 drives opening and closing transmission gear 44 to rotate, causing opening and closing rack 42 to rotate. The rotation of opening and closing rack 42 drives opening and closing disc 4 to rotate, causing opening and closing torsion spring 43 to twist and store force. When opening and closing rack 42 rotates to the point where it stops transmitting to opening and closing transmission gear 44, the elastic force of opening and closing torsion spring 43 causes opening and closing rack 42 to contact opening and closing transmission gear 44 and stop transmitting. At this time, opening and closing disc 4 is in the first position, and connecting port 41 is connected to sand outlet 311.

[0066] Simultaneously, the rotation of the drive rod 51 causes the drive cam 511 to rotate. Before the drive cam 511 abuts against the driven cam 531, the drive rod 51 only rotates relative to the feed rod 53. After the drive cam 511 abuts against the driven cam 531, the rotation of the drive rod 51 causes the feed rod 53 to rotate synchronously in the forward direction. The feed rod 53 causes the synchronizing block 533 to rotate synchronously. The rotation of the synchronizing block 533 causes the synchronizing groove 543 to rotate, making the rotating disk 54 rotate synchronously. During the rotation of the rotating disk 54, each sand discharge port 541 intermittently contacts the partition 34. The feed inlet 341 is connected, allowing the fire sand inside the cylinder 3 to fall intermittently, preventing excessive falling fire sand from obstructing the rotation of the feed rod 53. At the same time, the rotation of the rotating disk 54 drives each crushing column 542 to rotate. When the crushing column 542 collides with the clumps of fire sand, the clumps of fire sand are broken up, preventing the fire-fighting effect from decreasing due to clumping. The forward rotation of the feed rod 53 drives the fire sand at the bottom of the cylinder 3 to be transported into the sand outlet pipe 32. The fire sand transported into the sand outlet pipe 32 is sent out into the fire bucket 25 below the sand outlet pipe 32.

[0067] As the amount of fire sand inside the fire bucket 25 increases, the total weight of the fire bucket 25 and the fire sand increases. Under its own weight, the fire bucket 25 drives the sliding frame 23 to move downwards synchronously. The compression spring 24 contracts and stores energy. When the roller 231 moves to the lower end of the switching groove 273, the fire bucket 25 continues to move downwards, causing the roller 231 to move out along the upper delivery groove 274. Since the upper delivery groove 274 is inclined, the roller 231 drives the switching frame 22 to rotate as it moves along the upper delivery groove 274. The rotation of the switching frame 22 drives... Each sliding frame 23 moves along the upper combined sliding groove, and the roller 231 corresponding to an adjacent empty fire bucket 25 moves in along the upper feeding groove 272; when the roller 231 corresponding to the fire bucket 25 filled with fire sand moves into the upper smooth groove 271, the roller 231 corresponding to the adjacent empty fire bucket 25 moves to the upper end of the switching groove 273. At this time, the roller 231 abuts against the inner wall of the switching groove 273, the switching frame 22 no longer rotates, the empty fire bucket 25 is directly opposite the sand outlet pipe 32, and fire sand is filled.

[0068] In addition, the instructions issued by the terminal information processing system can also be transmitted to firefighters through the intermediate information transmission system. Firefighters can push the vehicle 1 to a position close to the disaster site, and at this time they can directly take the fire bucket 25 filled with fire sand to extinguish the fire, saving the time of filling the fire sand and buying time for rescue.

[0069] After confirming that the fire has been extinguished, the stop button on the vehicle body 1 can be pressed, and the controller controls the motor 7 to stop operating. At this time, the opening and closing plate 4 rotates to the second position under the elastic force of the opening and closing torsion spring 43. The connecting port 41 and the sand outlet 311 are not connected. During this process, the rotation of the opening and closing plate 4 drives the drive rod 51 to rotate in the opposite direction. The drive cam 511 and the driven cam 531 separate. The drive rod 51 only rotates relative to the feed rod 53. The feed rod 53 does not rotate. At this time, the sand discharge port 541 on the rotating plate 54 is not connected to the material passage port 341.

[0070] Because there are many electrical devices in the substation, the wires or equipment are prone to leakage in the event of a disaster. If the fire sand contains moisture, it will conduct electricity and seriously affect the safety of the escaping personnel. Therefore, it is necessary to dry the damp fire sand in time.

[0071] First, the bottom humidity sensor at the bottom of the cylinder 3 detects that the moisture content of the fire sand is too high and generates a signal. The signal is transmitted upward to the intermediate information transmission system, and then to the terminal information processing system. After processing the signal, the terminal information processing system sends out instructions. The instructions are transmitted to the receiver on the vehicle body 1 through the intermediate information transmission system. The receiver then transmits the instructions to the controller. The controller then issues instructions to control the motor 7 to operate in reverse.

[0072] The reverse rotation of motor 7 drives the drive rod 51 to rotate in the opposite direction. The reverse rotation of drive rod 51 drives the feed rod 53 to rotate in the opposite direction through drive cam 511 and driven cam 531. The rotation of feed rod 53 drives the rotating disk 54 to rotate, causing the fire sand above the rotating disk 54 to fall intermittently. The fire sand at the bottom of the cylinder 3 is transported to the upper end of the inner tube 33.

[0073] Simultaneously, the reverse rotation of the drive rod 51 drives the synchronous pawl 52 to rotate, causing the synchronous ratchet 611 to rotate synchronously. The rotation of the synchronous ratchet 611 drives the rotating seat 61 to rotate. During the rotation of the rotating seat 61, the transport transmission gear 64 meshes with and moves with the fixed end face gear ring 65, causing the transport transmission gear 64 to rotate. The rotation of the transport transmission gear 64 drives the transport driven gear 631 to rotate, causing the transport rod 63 to rotate. The rotation of the transport rod 63 causes the fire sand at the upper end of the inner tube 33 to be transported into the fixed tube 612; at the same time, the transport driven gear 631... The rotation also drives the sleeve transmission gear 66 to rotate, causing the driven internal gear ring 622 to rotate. The rotation of the driven internal gear ring 622 drives the rotating sleeve 62 to rotate. During the rotation of the rotating sleeve 62, when the movable opening 621 is not connected to the fixed opening 613, the fixed opening 613 is closed, and the fire sand in the fixed pipe 612 cannot fall. When the movable opening 621 is connected to the fixed opening 613, the fire sand in the fixed pipe 612 falls through the fixed opening 613, and with the rotation of the rotating seat 61, the fire sand is evenly spread on the top layer of fire sand in the cylinder 3.

[0074] When motor 7 operates in reverse for a certain period of time, the controller stops motor 7. At this time, the sand discharge port 541 on the rotating disk 54 is not connected to the feed port 341. The damp fire sand at the bottom of the cylinder 3 is transported to the top layer and evenly spread, so that it can be dried. The evenly spread fire sand can reduce the drying time. After the top humidity sensor detects that the fire sand is dried, the controller controls motor 7 to operate in reverse for a certain period of time again to carry out a new round of drying until the bottom humidity sensor detects that the moisture content of the fire sand meets the conditions.

Claims

1. A fire control sandbox in a fire control monitoring system, characterized by: The utility model relates to a fire-fighting sand bucket vehicle, which comprises a vehicle body, a sand barrel fixedly connected to the top of the vehicle body, a switching column fixedly connected to the top of the vehicle body, an upper combined sliding groove formed on the outer wall of the switching column, a switching frame rotatably connected to the outer wall of the switching column, a plurality of sliding frames slidably connected to the upper combined sliding groove, a plurality of fire buckets detachably connected to the sliding frames, and a plurality of sliding frames arranged at equal intervals in the circumferential direction. The upper combined sliding groove comprises a switching groove arranged in the upward direction and an upper delivery groove arranged in the upward direction and connected to the lower end of the switching groove. The inner bottom of the sand barrel is fixedly connected to a sand outlet pipe capable of delivering fire-fighting sand to the fire bucket. The upper end of the inner pipe is rotatably connected to a spreading assembly capable of spreading fire-fighting sand on the uppermost layer. The spreading assembly comprises a rotating seat rotatably connected to the upper end of the inner pipe, a fixed pipe arranged in the radial direction and connected to the inner pipe, and a fixed opening arranged in the axial direction and downward on the inner wall of the fixed pipe. The spreading assembly further comprises a rotating sleeve rotatably connected to the outer wall of the fixed pipe and capable of closing the fixed opening, a transport rod rotatably connected to the inner part of the fixed pipe and in transmission connection with the rotating sleeve, and a fixed end face gear ring fixedly connected to the upper part of the sand barrel and in transmission connection with the transport rod.

2. A fire control sandbox in a fire control monitoring system as claimed in claim 1, characterized in that: The inner wall of the opening and closing disc is formed with an opening and closing rack arranged in the circumferential direction. The lower part of the sand barrel is rotatably connected to an opening and closing transmission gear capable of being in transmission connection with the opening and closing rack. The output shaft of the motor is fixedly connected to a driving rod in transmission connection with the opening and closing transmission gear. The inner wall of the feeding rod is fixedly connected to an eccentric driven convex strip in the axial direction. The inner bottom of the sand barrel is formed with a sand outlet connected to the sand outlet pipe, and the opening and closing disc is formed with a communication hole in the upward direction and in communication with the sand outlet. The upper end of the inner pipe is rotatably connected to a spreading assembly capable of spreading fire-fighting sand on the uppermost layer. When the driving rod rotates forward, the opening and closing disc rotates to a first position, the opening and closing torsion spring is energized, the opening and closing rack is not in transmission with the opening and closing transmission gear, the communication port is communicated with the sand outlet, and the driving convex strip is in abutment with the driven convex strip so that the feeding rod continuously rotates forward; when the driving rod stops rotating, the opening and closing disc rotates to a second position under the elastic force of the opening and closing torsion spring, the communication port is not communicated with the sand outlet, the opening and closing disc drives the driving rod to rotate reversely, the driving convex strip is separated from the driven convex strip, and the feeding rod does not rotate.

3. A fire control box in a fire control monitoring system as claimed in claim 2, wherein: The inner wall of the rotating seat is formed with a synchronous ratchet, and the outer wall of the driving rod is rotationally connected with a synchronous pawl capable of driving the synchronous ratchet to rotate; the synchronous pawl and the driving rod are provided with a synchronous torsion spring for driving the synchronous pawl to rotate towards the synchronous ratchet.

4. A fire control box in a fire control monitoring system as recited in claim 1, wherein: The sliding frame is rotationally connected with a roller in sliding connection with the upper combined sliding groove; the upper combined sliding groove further comprises an upper horizontal sliding groove and an upper inclined feeding groove; one end of the upper horizontal sliding groove is communicated with the lower end of the upper feeding groove, and the other end of the upper horizontal sliding groove is communicated with the lower end of the upper feeding groove; the upper end of the upper feeding groove is communicated with the upper end of the switching groove; The switching frame is rotationally connected with a rotation-stopping pawl, and the switching column is formed with a rotation-stopping ratchet for preventing the rotation-stopping pawl from moving reversely; the rotation-stopping pawl and the switching frame are provided with a rotation-stopping torsion spring for driving the rotation-stopping pawl to rotate towards the rotation-stopping ratchet; During the rotation of the switching frame, the fire bucket filled with fire sand moves from the lower end of the switching groove to the upper horizontal sliding groove, and the empty fire bucket moves from the upper horizontal sliding groove to the upper end of the switching groove.

5. A fire control box in a fire control monitoring system as claimed in claim 4, wherein: The outer wall of the switching column is formed with a lower combined sliding groove below the upper combined sliding groove; the lower combined sliding groove comprises a lower inclined feeding groove, a lower inclined feeding-out groove, and a lower horizontal sliding groove opposite to the upper horizontal sliding groove in the vertical direction; the upper end of the lower inclined feeding groove is communicated with the upper end of the lower inclined feeding-out groove; one end of the lower horizontal sliding groove is communicated with the lower end of the lower inclined feeding groove, and the other end of the lower horizontal sliding groove is communicated with the lower end of the lower inclined feeding-out groove; When the roller of the sliding frame above is located in the switching groove, the roller of the sliding frame below is located in the lower inclined feeding-out groove.

6. A fire control box in a fire control monitoring system as recited in claim 1, wherein: The lower end of the inner tube is rotationally connected with a rotating disc fixed relative to the feeding rod; the upper end of the rotating disc is formed with a plurality of crushing columns for crushing the fire sand clumps; a plurality of annular and concentric partition plates are fixedly connected to the inside of the cylinder above the rotating disc; each partition plate divides the cylinder into a plurality of cavities that are not communicated with each other; the upper end of the rotating disc is formed with a plurality of discharge ports for the fire sand passing through in a vertical direction corresponding to each cavity. When the feeding rod rotates, the rotating disc rotates synchronously, and during one rotation of the rotating disc, the layer of fire-fighting sand at the upper end of the rotating disc is discharged through the corresponding sand discharge port, and the fire-fighting sand clumps are crushed by the crushing columns, so that the clumped fire-fighting sand does not affect use.

7. A fire control box in a fire control monitoring system as defined in claim 6, wherein: The inner wall of the rotating disc is formed with a plurality of circumferentially arranged synchronous grooves; the outer periphery of the feeding rod is fixedly connected with a synchronous ring, and the outer wall of the synchronous ring is formed with a plurality of synchronous blocks that are clamped with the corresponding synchronous grooves.

8. A fire control box in a fire control monitoring system as recited in claim 6, wherein: The inner wall of the rotating disc is formed with a plurality of circumferentially arranged synchronous grooves; the outer periphery of the feeding rod is fixedly connected with a synchronous ring, and the outer wall of the synchronous ring is formed with a plurality of synchronous blocks that are clamped with the corresponding synchronous grooves.

9. A fire control box in a fire control monitoring system as recited in claim 1, wherein: The inner wall of the rotating disc is formed with a plurality of circumferentially arranged synchronous grooves; the outer periphery of the feeding rod is fixedly connected with a synchronous ring, and the outer wall of the synchronous ring is formed with a plurality of synchronous blocks that are clamped with the corresponding synchronous grooves.

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